Thin iPhone 6 Case (Socket Case) (Iteration 3)

See the newest version of this design here! (http://www.thingiverse.com/thing:2051675)

This phone case design is nearly identical to the previous iteration of this design found here (http://www.thingiverse.com/thing:2051071) except for one detail. This design has a small lip on the inner edge near the surface of the phone case. This proved effective at holding the phone into the case. As you can see on the bottom edges, I dropped the phone while it was in the case, and it landed such that the bottom pieces partially chipped off.

This is an iPhone 6 case with 5 hex sockets located at various places. Each side around the perimeter of the phone is 2 mm thick, and the back of the phone case is about 4 mm thick. The two socket holes in the center of the case are 1/4 and 5/16 in. The three at the bottom are 1/4, 5/16, and 3/8 in. I made this in Inventor, which has a unit of mm. Cura, or possibly other slicing softwares, naturally use mm as well. So when you input the STL it will be ve